Fuel feeding device for internal combustion engines



R. EGLI March 30, 1943.

FUEL FEEDING DEVICE FOR INTERNAL COMBUSTION ENGINES Filed Feb. 12, 1940 2 Sheets-Sheet l akin M43;

March 30, 1943. R. EGLI 2,314,926

FUEL FEEDING DEVICE FOR INTERNAL COMBUSTION ENGINES Filed Feb. 12, 1940 2 Sheets-Sheet 2 amen W010 Patented Mar. 30, 1943 UNITED STATES PATENT OFFICE FUEL FEEDING DEVICE FOR INTERNAL COMBUSTION ENGINES 2 Claims.

The instant invention relates to a fuel feeding means for internal combustion engines and more particularly to means for feeding a fuel mixture such as, for example, methyl alcohol and crude oil, a mixture of different crude oil fractions, or similar power-producing liquids.

One of the primary objects of the invention is the provision of fuel-feeding means of the character described comprising a plurality of pipes or the like connected to separate fuel sources with means for regulating the mixing ratio of the separate fuels.

The above and other aims and objects will be apparent from the detailed description hereinafter appearing when taken in conjunction with the appended drawings, in which Fig. 1 is a side elevational view of an internal combustion engine with the invention applied thereto;

Fig. 2 is an elevational view, partly in section of the fuel feeding means;

Fig. 3 is a partial elevational view taken at right angles to Fig. 2.

Referring now to the drawings, and particularly to Fig. 1 thereof, it will be seen that the reference numeral 4 designates the fuel tank of an internal combustion engine, said tank being divided into two compartments l6 and I1, one of the compartments being filled with a fuel such as methyl alcohol and the other with crude petroleum fuel oil. Connected to and extending from the compartments i6 and ii are fuel conducting pipes 6 and I3, respectively. through which the fuels aresucked by the vacuum tank of the engine.

From tank 5 the fuels flow by gravity through pipes 44 and 45 connected thereto to the dual carburetor l. The numeral l8 designates the crank case of the engine. Combustible gases which enter said crank case by reason of leaky piston rings are drawn therefrom through pipe 8 connected to carburetor I, thus utilizing said combustible gases. An accelerator pedal 9 is provided for actuating the carburetor I.

For adjusting the relative quantities of the methyl alcohol and crude oil mixture the invention contemplates an eccentric disc l2 rotatably mounted on a pivot pin 14, the latter passing through the upper end of a rod l I slidable 1n hollow guide 3, all of this structure being mounted adjacent the carburetor I. For sliding the rod H upwardly and downwardly there is provided a worm 2 secured to the lower end of rod ll, said worm being operable by a worm wheel i in a manner hereinafter described.

One end of a rod I9 is pivoted to disc l2 adjacent the periphery of the latter and the other end of said rod is pivotally attached to the accelerator pedal 9. The disc I2 has a plurality of axially extending slots 36 and 31, the first mentioned slot receiving one end of a rod 38 and the other slot adjustably receiving one end of rod 39. The opposite ends of rods 38 and 39 are respectively pivoted to internal flap valves 42 and 43 in fuel supply pipes 44 and 45, respectively. The valve 42 has a spring 40 and the valve 43 a spring 4! for normally urging said valves to obstructing position within said supply pipes. It will now be understood that by adjusting the flap valves, the flow of methyl alcohol and fuel oil can be regulated.

By moving bolt or rod ll up or down the adjusting disc l2 carried thereby will be moved and it will be seen that the ends of rods 33 and 39 will slide in slots 36 and 31, thus varying the distance from pivot 14 and consequently the amount of movement which is transmitted to the closure valves 42 and 43 by the rods 38 and 39 when the disc I2 is actuated by rod l9. As will be seen from Fig. 1, the worm wheel 2 may be operated by a rod 46 terminating in a knob positioned adjacent the drivers seat. The rod 46 is fastened to the shaft 48 of the worm wheel by a ball and socket joint 41.

The mixed fuels after leaving the carburetor I pass thru coils (not shown) in the casing ill. The exhaust gases from the engine pass around the coils whereby the mixed gases are preheated.

From the above it will be seen that it is contemplated that complete combustion be obtained, that is to say, that the temperature of combustion be neither below nor above the ignition temperature of the fuel mixture.

It will also be understood that the invention may be applied to existing internal combustion engines or incorporated into engines newly constructed.

While the invention has been described in detail it will be appreciated that various modifications may be made within the scope of the appended claims.

I claim:

1. A fuel feeding device for internal combustion engines comprising a plurality of fuel feeding pipes each having a valve for controlling the flow of fuel therethrough, means for simultaneously actuating said valves, said means comprising a rotatable member and rods each eccentrically connected at one end thereof to said member, each rod being connected to a valve at trically connected at one end thereof to said member, each rod being connected toa. valve at its other end, means for rotating said member, a slidable rod mounting said member, means for moving said slidable rod to adjust the distance of the axis of rotation of said member from said valves, said last mentioned means including a worm fastened to said slidable rod, and an adjusting gear meshing with said worm.

RUDOLF EGLI. 

